A history of nitrous oxide and oxygen anaesthesia. 8: Twenty years of nitrous oxide anaesthesia in Great Britain.
D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation; D049672:History, 19th Century; D008397:Masks; D009609:Nitrous Oxide; D006113:United Kingdom
D009609:Nitrous Oxide